Gold Bar Rim
This trail often goes unnoticed. Gold Bar Rim is full of amazing views, and offers a completely different experience going up than coming down. It's worth taking the time to explore, if only for the awesome final overlook. It is a great trail for UTVs, but ATVs will find it extremely challenging.
From Center Street in Moab, drive north on Hwy. 191. After 4.8 miles, just before you turn right uphill, bear left at sign for Gold Bar Rim.